Pet feeder



FIG. 1 is a side elevational view of a pet feeder, showing my new design, the opposite side being the same as the side shown;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear being the same as the front shown;

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a pet feeder, as shown and described. 